The NFL will stage four regular-season games in London next year. The NFL started playing regular-season games in London in 2007, and has recently played three games per season in the British capital. The league has never before played four games in one season in London.

Trevor Siemian is on track to return to the Denver Broncos' starting lineup Sunday at Tennessee barring a setback. Coach Gary Kubiak officially listed Siemian as 50-50 but indicated that if he shows up Saturday like he did Friday - without pain or soreness and able to move around - he'll be back under center when the Broncos (8-4) face the Titans (6-6). Kubiak said there's always a risk of re-injury for any player, but the Broncos would feel good about putting Siemian back on the field with an orthotic and tape, ''but the bottom line: can you do what you need to do to play?

Suspended Oakland Raiders pass rusher Aldon Smith met with NFL Commissioner Roger Goodell on Friday in hopes of being reinstated from his substance-abuse ban. A person with knowledge of the meeting said Smith sat down with the commissioner and other league staff to make his case to be allowed back on the field following his yearlong suspension for violating rules on substance abuse. There is no timeline for when or if Smith will be reinstated.

New Orleans Saints safety Kenny Vaccaro will serve a four-game suspension, starting this Sunday at Tampa Bay, because he violated league rules pertaining to performance enhancing drug use, the NFL announced Friday. The league did not specify which banned substance was found in Vaccaro's system. The Saints have four regular-season games left, meaning Vaccaro's won't play again this season unless New Orleans (5-7) rallies to make the playoffs.

Although Jeff Fisher and Les Snead are both disappointed in the Los Angeles Rams' performance during their five-year tenure, the coach and the general manager both insist those feelings aren't personal. Fisher and Snead dismissed widespread speculation about the health of their partnership Friday, saying they work together closely and professionally. ''Honestly, I don't know where this came from,'' Fisher said.

New York Jets right tackle Breno Giacomini and defensive tackle Steve McLendon were among six players ruled out Friday for the game at San Francisco on Sunday. Linebacker Lorenzo Mauldin, wide receiver Jalin Marshall, cornerback Antonio Allen and running back Khiry Robinson also will not play because of injuries. Defensive end Muhammad Wilkerson is questionable to play with an injured ankle.